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Paper Abstract and Keywords
Presentation 2008-07-18 13:05
Time series analysis of time to repair distribution for telecommunication networks
Hiroyuki Funakoshi, Tatsuya Matsukawa (NTT) IN2008-36
Abstract (in Japanese) (See Japanese page) 
(in English) From the viewpoint of keeping the level of reliability in telecommunication networks, the reliability management in operation phase has been more important than that in design phase.
Typical measures for the reliability management are failure rate,
unavailability, and maintainability. Failure rate and unavailability are
usually used as evaluation criteria for network reliability. However, there are some problems in evaluating the maintainability because it depends on the various factors such as skill levels of maintainers, operation planning, andso on.
In past, we focused on maintainability and analyzed the
characteristic of distribution of time to repair. Moreover, the relationship between maintainability and actual maintenance actions was also shown. In this paper, we investigate the characteristics of
distributions of time to repair by performing the time series analysis because the maintainability in telecommunication networks depends on the operating time.
Keyword (in Japanese) (See Japanese page) 
(in English) reliability / maintainability / mean time to repair / kernel density / time series analysis / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 136, IN2008-36, pp. 59-64, July 2008.
Paper # IN2008-36 
Date of Issue 2008-07-10 (IN) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee IN  
Conference Date 2008-07-17 - 2008-07-18 
Place (in Japanese) (See Japanese page) 
Place (in English) Koube Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) NGN, VoIP, FMC, Content Distribution, IPv6, etc. 
Paper Information
Registration To IN 
Conference Code 2008-07-IN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Time series analysis of time to repair distribution for telecommunication networks 
Sub Title (in English)  
Keyword(1) reliability  
Keyword(2) maintainability  
Keyword(3) mean time to repair  
Keyword(4) kernel density  
Keyword(5) time series analysis  
1st Author's Name Hiroyuki Funakoshi  
1st Author's Affiliation Nippon Telegraph and Telephone Corp. (NTT)
2nd Author's Name Tatsuya Matsukawa  
2nd Author's Affiliation Nippon Telegraph and Telephone Corp. (NTT)
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Date Time 2008-07-18 13:05:00 
Presentation Time 25 
Registration for IN 
Paper # IEICE-IN2008-36 
Volume (vol) IEICE-108 
Number (no) no.136 
Page pp.59-64 
#Pages IEICE-6 
Date of Issue IEICE-IN-2008-07-10 

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